Snyder Industries 275 Gallon XLPE Chemical Feed Station Tank

Wall choice at 275 gallons

Set against its own siblings this part answers the wall question at the top of the floor-mounted range. SII-5740103CF45 is listed at the same 76 by 62 by 59 inches and the same 226 pounds in high density linear polyethylene; this one is cross-linked polyethylene. Both sheets give the same 1.9 specific gravity rating, the same 120 F / 48 C limit and the same 18 inch lid, and neither explains the choice, so we do not invent one. The working rule is that a cross-linked wall gets specified where the chemistry is aggressive, where the station is drained, washed and refilled hard year after year, or where a standard already requires it, and a linear wall does the rest. The second comparison is the one people get wrong in this family: this 275 is listed at 59 inches, shorter than the 250 gallon stations at 69 inches, on an identical plan. More gallons in a lower tank, as the sheet gives it. If the room has a low ceiling or a duct across it, that is a genuine reason to take this part over a 250. The third comparison is the stand. SII-5740104CFWS42 is the standing 275, listed at 72 by 62 by 76 inches and 150 pounds, a different plan and a lighter listing than this one; the sheet says so and does not explain it, and we print it that way. Site this station on a flat, level, continuous bearing surface under the whole base, remembering it is the heaviest loaded station in its range: 2,294 pounds of water and 4,358 pounds at the rating. Confirm the volume in the tank sizing calculator, take the freeboard from the tank sizing guide, and where a basin or kerb is specified read the Snyder Captor containment comparison before somebody sizes it by eye.

Two 275s on the floor, one standing

The first two rows are one shell and two walls at identical dimensions and identical weight; this page is the cross-linked one. The third row is the standing 275, and its listing does not follow the family pattern: 72 by 62 inches in plan against 76 by 62, 76 inches tall, and 150 pounds where the floor-mounted pair is 226. The sheet gives those figures and no explanation, so read them as listed and ask us to confirm the part before you build a kerb around a plan that may not match. Row four is the 250 gallon station at 69 inches and 209 pounds, taller and lighter than this one, which is the sheet's own arrangement rather than an error we are smoothing over. Row five is the 330 gallon station Snyder names for sulfuric acid with a containment basin, 76 by 62 by 68 inches and 238 pounds; we use the maker's own naming for it and assert nothing further about what it will or will not hold. Where you are choosing in the 275 gallon row itself, the honest summary is short: same tank, harder wall on this one, and the stand only if the pump needs to live underneath.

Picked the 275 gallon tank? Add it to your cart above; freight is quoted to your ZIP before you pay anything.

A big lid, no listed vent, and how to plumb around that

• The air path: this sheet names no vent fitting, so the 18 inch lid is the only published opening and it does the breathing as well as the filling. Two hundred and seventy-five gallons displaces a lot of air on a fast fill and pulls it back on a fast draw. Keep the path open, and never run a pump against a sealed top.
• Working through an 18 inch opening: it is wide enough for an arm, a brush and a level device, which makes cleaning between chemistries a practical job rather than a fight. At 59 inches it is also at a sensible height, so most of the routine work on this station happens without a platform.
• Discharge: no outlet or inlet size is published on this sheet, and we will not print one. Confirm the fitting on your part with us before the pipework is fabricated. Keep the pump below the low point on its own base, the suction short and falling, and a cleanable strainer where a hand can reach it.
• Protection: an isolation valve at the tank, a flexible connector at the first joint so a pump start is never taken into the wall, and a low level cut-out that stops the pump with liquid still above the fitting.
• Instrument and mark: the level gauge selection guide for a level device matched to the chemistry, and the tank label and signage guide for the marking an inspector will accept.
• Service limit: 120 F / 48 C, and the sheet publishes no warranty term.

A cross-linked wall changes what the tank tolerates, not what the pipework owes it. Supports off the floor, a flexible connector at the tank, and the chemical named on the order so the gaskets and bolting are chosen against it.

Harder chemistries at day-tank scale

This is the part that gets specified when a plant wants the largest floor-mounted station in the range and the harder wall with it: acid and caustic feed at water and wastewater works, ferric and polymer dosing ahead of a clarifier, treatment chemical on a cooling loop, a concentrated cleaner or sanitiser in a food, beverage or paper plant, a plating or finishing line day tank, a chemical room at a mine or a generating station. Everything in that list is judged on dose accuracy, and dose accuracy is judged on what the tank actually contains: draw the sample the way the chemical sampling protocol article describes rather than the way that is convenient.

Resin compatibility, line by line

Below are the liquids this resin is rated for, the concentration each rating holds to, and the fitting and gasket to specify. Check the exact concentration and temperature you run against the chemical page or the chemical compatibility database before ordering.

• Acetic Acid (60%) - PP/PVC fittings, EPDM gaskets
• Aluminum Sulfate (50%) - PVC fittings, EPDM gaskets
• Calcium Chloride (40%) - PVC fittings, EPDM gaskets
• DEF (32.5%) - 316SS fittings, EPDM gaskets
• Ethylene Glycol (100%) - PVC fittings, EPDM gaskets
• Ferric Chloride (50%) - PVC fittings, EPDM gaskets
• Ferric Sulfate (60%) - PVC fittings, EPDM gaskets
• Ferrous Sulfate (20%) - PVC fittings, EPDM gaskets
• Hydrofluosilicic Acid (26%) - PP/PVC fittings, Viton gaskets
• Magnesium Chloride (30%) - PVC fittings, EPDM gaskets
• Polyaluminum Chloride - PVC fittings, EPDM gaskets
• Potassium Carbonate (50%) - PVC fittings, EPDM gaskets
• Potassium Hydroxide (saturated) - PVC fittings, EPDM gaskets
• Propylene Glycol - PP/316SS fittings, EPDM gaskets
• Sodium Carbonate (30%) - PVC fittings, EPDM gaskets
• Sodium Thiosulfate (40%) - PVC fittings, EPDM gaskets
• Urea Solution (50%) - PP/PVC fittings, EPDM gaskets

Crating a 59 inch station

Molded at Marked Tree, Arkansas, this station ships with the freight class given as LTL under NMFC 156600-01, shipping at 76 by 62 by 59 inches. That is the same footprint as the 250 gallon parts and a lower shipment than any of the standing ones, so the delivery is usually the easy part of the project; the pad and the pipework are not. Price the lane to your ZIP with the freight cost estimator and note that the listed price is before freight. Lift the 226 pounds under the base, never by the lid or by any fitting, and set the station on its finished pad before the first pipe is cut. Water-fill it on the level, hold it while you read the base, the lid seal and the slab beneath, then drain it dry. Do that test before the chemical is ordered rather than after it has been delivered, because a full drum in the yard has a way of hurrying a commissioning check that should not be hurried. Keep the delivery paperwork with the tank; the serial number on the shell is what a warranty claim starts from.